package chap3;
import javax.servlet.*;

public class Sample3_7Listener implements
                            ServletContextAttributeListener {
  public void attributeAdded(
                        ServletContextAttributeEvent ev){
    System.out.println("-- attributeAdded --");
  }
  public void attributeRemoved(
                        ServletContextAttributeEvent ev){
    System.out.println("-- attributeRemoved --");
  }
  public void attributeReplaced(
                        ServletContextAttributeEvent ev){
    System.out.println("-- attributeReplaced --");
  }
}
